What's the call .... the sequel
 

OBR --- Little League. 0 out. R2. The batter hits a looping drive to short right field. R2 holds up and remains at 2nd as the ball drops safely. The BR rounds 1st slides into 2nd safely. R2 is standing on 2nd with the BR still on the ground touching 2nd. The defensive player tags R2. The volunteer-dad base umpire calls R2 out. The BR requests time which is granted by the base umpire. The offensive manager comes out to discuss the play with the base umpire during the timeout, and casually mentions to the BR to move back to 1st which he does. The volunteer base umpire asks for "HELP!" from you the plate umpire. Whatcha gonna do Blue? :)

Call out BR and put R2 back on second.

+1

I like that too. It's fair. The umpire erred. Had he called it correctly, the result would be the same as Bob's fix.

I'll work the game alone instead of with a volunteer dad from the stands "base ump." But to answer your question...I'd do what the other guys above would do.

Depends on the gift card.

According to the OP, the BR wasn't tagged. So first R2 (not out by rule) was called out, and then after a time out, the BR (not out by rule) was called out.

But once the call was blown and the time out called, the "bell" had been rung, so I guess they did the fair thing.

And johnnyg is right: work the game alone rather than with a base ump from the stands. I've done it many times.

Is this an option?
 

While I like Mr. Jenkins' suggestion, I had another. I would have suggested that Field Umpire put R2 on 2B, and put B/R on 2B. Give the ball back to the pitcher, wait until 5.11 is satisfied and call, "Play." Await hilarity.

Seriously, is there any proscription from putting the ball into play with two runners on the same base?

I don't know if you could call the BR out. I'd certainly protest it, since he wasn't tagged.

The last base that the BR legally had was first. So BR at first, and R2 at second.

Hot Dog Scoreboard

PU - 2
BU - 0

Citation?
 

I'm not sure the practice is always to place runners at their last legal base. Would you let a runner return to a base he left early during a timeout?

He has no legal right to occupy second, as he not in legal possesion of it. Hence, he's on first after the dopey timeout.

I do like the idea of putting them both on second, and putting it in play.